Fitness is massive. Allows him to focus on other parts of his game if he is fit as a fiddle. If your fucked your more likely to make mistakes and technique won't be as good.
His passing absolutely needs work, but he is fit and strong, has good feet and a great mentality. Other things can be coached and hopefully the coaching team we have now are good enough to improve him.
You only need to look at Stuart Armstrong to see what good coaching, a system and some confidence can do to a young player.

Honestly Goldson imo. Full of confidence and determination when he spoke today. Assured and I liked when he said he will be getting it across to whoever is playing with him that he wants clean sheets. Like saying he will be playing it's just a case of who is with him